<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" :inline="true" label-width="68px">
      <el-form-item label="省名称" prop="province">
        <el-input
          v-model="queryParams.province"
          placeholder="请输入省名称"
          clearable
          size="small"
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="城市名称" prop="city">
        <el-input
          v-model="queryParams.city"
          placeholder="请输入城市名称"
          clearable
          size="small"
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="区域名称" prop="area">
        <el-input
          v-model="queryParams.area"
          placeholder="请输入区域名称"
          clearable
          size="small"
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="级别" prop="level">
        <el-select v-model="queryParams.level" placeholder="请选择级别" clearable size="small">
          <el-option label="省" value="1"/>
          <el-option label="市" value="2"/>
          <el-option label="区" value="3"/>
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['system:region:add']"
        >新增
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['system:region:edit']"
        >修改
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['system:region:remove']"
        >删除
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['system:region:export']"
        >导出
        </el-button>
      </el-col>
    </el-row>

    <el-table v-loading="loading" :data="regionList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"/>
      <el-table-column label="序号" align="center" prop="id"/>
      <el-table-column label="省名称" align="center" prop="province"/>
      <el-table-column label="城市名称" align="center" prop="city"/>
      <el-table-column label="区域名称" align="center" prop="area"/>
      <el-table-column label="城市编码" align="center" prop="cityCode"/>
      <el-table-column label="级别" align="center" prop="level">
        <template slot-scope="scope">
          <el-tag type="danger" v-if="scope.row.level == 1">省</el-tag>
          <el-tag type="success" v-if="scope.row.level == 2">市</el-tag>
          <el-tag type="warning" v-if="scope.row.level == 3">区</el-tag>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            v-hasPermi="['system:region:edit']"
          >
            <router-link :to="'/regionConfig/region/regionConfig/' + scope.row.id" class="link-type">
              配送设置
            </router-link>
          </el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['system:region:remove']"
          >删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改地区配送对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="作用级别" prop="level">
          <el-select v-model="form.level" placeholder="请选择作用级别" clearable size="small">
            <el-option label="省" value="1"/>
            <el-option label="市" value="2"/>
            <el-option label="区" value="3"/>
          </el-select>
        </el-form-item>
        <el-form-item label="省名称" prop="province">
          <el-select v-model="form.province" size="small" placeholder="请选择省名称" @change="selectCity ">
            <el-option
              v-for="item in proviceList"
              :key="item.id"
              :label="item.name"
              :value="item.id"
            />
          </el-select>
        </el-form-item>
        <el-form-item label="城市名称" prop="city">
          <el-select v-model="form.city" size="small" placeholder="请选择城市名称" @change="selectArea">
            <el-option
              v-for="item in cityList"
              :key="item.id"
              :label="item.name"
              :value="item.id"
            />
          </el-select>
        </el-form-item>
        <el-form-item label="区域名称" prop="area">
          <el-select v-model="form.area" size="small" placeholder="请选择区域名称">
            <el-option
              v-for="item in areaList"
              :key="item.id"
              :label="item.name"
              :value="item.id"
            />
          </el-select>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
  import {
    listRegion,
    getRegion,
    delRegion,
    addRegion,
    updateRegion,
    exportRegion,
    getRegionList
  } from "@/api/system/region";

  export default {
    name: "Region",
    data() {
      return {
        // 遮罩层
        loading: true,
        // 选中数组
        ids: [],
        // 非单个禁用
        single: true,
        // 非多个禁用
        multiple: true,
        // 总条数
        total: 0,
        // 地区配送表格数据
        regionList: [],
        // 弹出层标题
        title: "",
        // 是否显示弹出层
        open: false,
        // 查询参数
        queryParams: {
          pageNum: 1,
          pageSize: 10,
          province: undefined,
          city: undefined,
          area: undefined,
          level: undefined
        },
        currentLevel: 1,
        proviceList: [],
        cityList: [],
        areaList: [],
        // 表单参数
        form: {},
        // 表单校验
        rules: {
          level: [
            {required: true, message: "请选择作用级别", trigger: "blur"}
          ],
          province: [
            {required: true, message: "省名称不能为空", trigger: "blur"}
          ],
          city: [
            {required: true, message: "市名称不能为空", trigger: "blur"}
          ],
          area: [
            {required: true, message: "区名称不能为空", trigger: "blur"}
          ],
        }
      };
    },
    created() {
      this.getList();
    },
    methods: {
      selectCity() {
        this.cityList = [];
        this.form.city = undefined;
        this.areaList = [];
        this.form.area = undefined;
        this.getRegionListHandle(this.form.province, 2);
      },
      selectArea() {
        this.areaList = [];
        this.form.area = undefined;
        this.getRegionListHandle(this.form.city, 3);
      },
      /** 查询地区配送列表 */
      getList() {
        this.loading = true;
        listRegion(this.queryParams).then(response => {
          this.regionList = response.rows;
          this.total = response.total;
          this.loading = false;
        });
      },
      // 取消按钮
      cancel() {
        this.open = false;
        this.reset();
      },
      // 表单重置
      reset() {
        this.form = {
          id: undefined,
          province: undefined,
          city: undefined,
          area: undefined,
          level: undefined
        };
        this.resetForm("form");
      },
      /** 搜索按钮操作 */
      handleQuery() {
        this.queryParams.pageNum = 1;
        this.getList();
      },
      /** 重置按钮操作 */
      resetQuery() {
        this.resetForm("queryForm");
        this.handleQuery();
      },
      // 多选框选中数据
      handleSelectionChange(selection) {
        this.ids = selection.map(item => item.id)
        this.single = selection.length != 1
        this.multiple = !selection.length
      },
      getRegionListHandle(pid, level) {
        const data = {
          pid: pid,
          level: level
        }
        getRegionList(data).then(response => {
          if (level == 1) {
            this.proviceList = response.data;
          } else if (level == 2) {
            this.cityList = response.data;
          } else {
            this.areaList = response.data;
          }
        });
      },
      /** 新增按钮操作 */
      handleAdd() {
        this.reset();
        this.getRegionListHandle(0, 1);
        this.open = true;
        this.title = "添加地区配送";
      },
      /** 修改按钮操作 */
      handleUpdate(row) {
        this.reset();
        const id = row.id || this.ids
        getRegion(id).then(response => {
          this.form = response.data;
          this.open = true;
          this.title = "修改地区配送";
        });
      },
      /** 提交按钮 */
      submitForm: function () {
        this.$refs["form"].validate(valid => {
          if (valid) {
            if (this.form.id != undefined) {
              updateRegion(this.form).then(response => {
                this.msgSuccess("修改成功");
                this.open = false;
                this.getList();
              });
            } else {
              addRegion(this.form).then(response => {
                this.msgSuccess("新增成功");
                this.open = false;
                this.getList();
              });
            }
          }
        });
      },
      /** 删除按钮操作 */
      handleDelete(row) {
        const ids = row.id || this.ids;
        this.$confirm('是否确认删除地区配送编号为"' + ids + '"的数据项?', "警告", {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }).then(function () {
          return delRegion(ids);
        }).then(() => {
          this.getList();
          this.msgSuccess("删除成功");
        }).catch(function () {
        });
      },
      /** 导出按钮操作 */
      handleExport() {
        const queryParams = this.queryParams;
        this.$confirm('是否确认导出所有地区配送数据项?', "警告", {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }).then(function () {
          return exportRegion(queryParams);
        }).then(response => {
          this.download(response.data);
        }).catch(function () {
        });
      }
    }
  };
</script>
